begin
begin
theorem
for
x being ( ( ) (
V11()
real ext-real )
Real)
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
is_differentiable_in x : ( ( ) (
V11()
real ext-real )
Real) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_in x : ( ( ) (
V11()
real ext-real )
Real) &
diff (
(arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) ,
x : ( ( ) (
V11()
real ext-real )
Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (diff (f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ,x : ( ( ) ( V11() real ext-real ) Real) )) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ;
theorem
for
x being ( ( ) (
V11()
real ext-real )
Real)
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
is_differentiable_in x : ( ( ) (
V11()
real ext-real )
Real) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) holds
(
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_in x : ( ( ) (
V11()
real ext-real )
Real) &
diff (
(arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) ,
x : ( ( ) (
V11()
real ext-real )
Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((diff (f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ,x : ( ( ) ( V11() real ext-real ) Real) )) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ;
theorem
for
r,
s being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ s : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= r : ( ( ) (
V11()
real ext-real )
Real)
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) + s : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r,
s being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ s : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (r : ( ( ) ( V11() real ext-real ) Real) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) + s : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
/ ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) * (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) * (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
n being ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((#Z n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
(#Z n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((#Z n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * ((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) #Z (n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) - 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
n being ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((#Z n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
(#Z n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((#Z n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * ((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) #Z (n : ( ( ) ( natural V11() real ext-real V46() V47() V48() V49() V50() V51() V63() V64() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) - 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) ((#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
(1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non
empty V11()
real ext-real positive non
negative )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
(#) ((#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) ((#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) ((#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
(1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non
empty V11()
real ext-real positive non
negative )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
(#) ((#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) ((#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r,
s being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ s : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
(#) arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (r : ( ( ) ( V11() real ext-real ) Real) * (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ (((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) + s : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r,
s being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ s : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
(#) arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (r : ( ( ) ( V11() real ext-real ) Real) * (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
- (((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) + s : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
* x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
(1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non
empty V11()
real ext-real positive non
negative )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
(#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
* x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
(1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non
empty V11()
real ext-real positive non
negative )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
(#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= #Z 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) holds
(
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
+ f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
* x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= #Z 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
(1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non
empty V11()
real ext-real positive non
negative )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
(#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= #Z 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
- ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) + ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= #Z 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
+ ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) + ((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real positive non negative ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
(id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . (x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ (x : ( ( ) ( V11() real ext-real ) Real) / (r : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
(id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . (x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
- (x : ( ( ) ( V11() real ext-real ) Real) / (r : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f1,
f2,
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= (#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) holds
(
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
+ f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (r : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f1,
f2,
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) &
r : ( ( ) (
V11()
real ext-real )
Real)
<> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= (#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) holds
(
(r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
(#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ (r : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f,
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
r : ( ( ) (
V11()
real ext-real )
Real)
<> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= (#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
- ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
. (x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f,
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) + ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
r : ( ( ) (
V11()
real ext-real )
Real)
<> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= (#Z 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= x : ( ( ) (
V11()
real ext-real )
Real)
/ r : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
+ ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) + ((r : ( ( ) ( V11() real ext-real ) Real) / 2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
. (x : ( ( ) ( V11() real ext-real ) Real) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st not
0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st not
0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
h,
r,
s being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f,
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
+ (h : ( ( ) ( V11() real ext-real ) Real) (#) f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= r : ( ( ) (
V11()
real ext-real )
Real)
+ (s : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= #Z 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + (h : ( ( ) ( V11() real ext-real ) Real) (#) f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + (h : ( ( ) ( V11() real ext-real ) Real) (#) f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (s : ( ( ) ( V11() real ext-real ) Real) + ((2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * h : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (((r : ( ( ) ( V11() real ext-real ) Real) + (s : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) + (h : ( ( ) ( V11() real ext-real ) Real) * (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
h,
r,
s being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f,
f1,
f2 being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
+ (h : ( ( ) ( V11() real ext-real ) Real) (#) f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
f1 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= r : ( ( ) (
V11()
real ext-real )
Real)
+ (s : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) &
f2 : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
= #Z 2 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) holds
(
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + (h : ( ( ) ( V11() real ext-real ) Real) (#) f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * (f1 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) + (h : ( ( ) ( V11() real ext-real ) Real) (#) f2 : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((s : ( ( ) ( V11() real ext-real ) Real) + ((2 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) * h : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (((r : ( ( ) ( V11() real ext-real ) Real) + (s : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) + (h : ( ( ) ( V11() real ext-real ) Real) * (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) holds
(
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
/ (x : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
* ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / (x : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
/ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
* arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) * arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,)
- (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom ((- arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
(- arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
- (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(((- arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - ((x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) * (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
exp_R : ( (
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V33(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V36()
V37()
V38()
continuous )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) * (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
- ((exp_R : ( ( Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V33( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) , REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V36() V37() V38() continuous ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= r : ( ( ) (
V11()
real ext-real )
Real)
* x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
r : ( ( ) (
V11()
real ext-real )
Real)
<> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
- (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
r being ( ( ) (
V11()
real ext-real )
Real)
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
for
f being ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((- (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
(
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= r : ( ( ) (
V11()
real ext-real )
Real)
* x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
r : ( ( ) (
V11()
real ext-real )
Real)
<> 0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
> - 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) : ( ( ) ( non
empty V11()
real ext-real non
positive negative V63() )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) &
f : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
PartFunc of ,)
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
< 1 : ( ( ) ( non
empty natural V11()
real ext-real positive non
negative V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V82()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) ) ) ) holds
(
((- (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
- (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((- (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / r : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) (#) (arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) * f : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) - (id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= - (((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + ((r : ( ( ) ( V11() real ext-real ) Real) * x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= ((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ ((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
ln : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= ((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
- ((ln : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st not
0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) arctan : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (- ((arctan : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
+ (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / (x : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;
theorem
for
Z being ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) st not
0 : ( ( ) (
natural V11()
real ext-real V46()
V47()
V48()
V49()
V50()
V51()
V63()
V64()
V84() )
Element of
NAT : ( ( ) (
V46()
V47()
V48()
V49()
V50()
V51()
V52()
V84() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) )
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= dom (((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) ) : ( ( ) (
V46()
V47()
V48() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) &
Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) )
c= ].(- 1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) ) : ( ( ) ( non empty V11() real ext-real non positive negative V63() ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ,1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) .[ : ( ( ) (
open V46()
V47()
V48()
V82()
V83()
V87() )
Element of
K6(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) ( )
set ) ) holds
(
((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
(#) arccot : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like one-to-one V36()
V37()
V38() )
PartFunc of ,) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
is_differentiable_on Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) & ( for
x being ( ( ) (
V11()
real ext-real )
Real) st
x : ( ( ) (
V11()
real ext-real )
Real)
in Z : ( (
open ) (
open V46()
V47()
V48() )
Subset of ( ( ) ( )
set ) ) holds
((((id Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) ^) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) (#) arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) ) : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like V36() V37() V38() ) Element of K6(K7(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ,REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( V36() V37() V38() ) set ) ) : ( ( ) ( ) set ) ) `| Z : ( ( open ) ( open V46() V47() V48() ) Subset of ( ( ) ( ) set ) ) ) : ( (
Function-like ) (
V19()
V22(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
V23(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
Function-like V36()
V37()
V38() )
Element of
K6(
K7(
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ,
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V36()
V37()
V38() )
set ) ) : ( ( ) ( )
set ) )
. x : ( ( ) (
V11()
real ext-real )
Real) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
= (- ((arccot : ( ( Function-like ) ( V19() V22( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) V23( REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) Function-like one-to-one V36() V37() V38() ) PartFunc of ,) . x : ( ( ) ( V11() real ext-real ) Real) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) / (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) )
- (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) / (x : ( ( ) ( V11() real ext-real ) Real) * (1 : ( ( ) ( non empty natural V11() real ext-real positive non negative V46() V47() V48() V49() V50() V51() V63() V64() V82() V84() ) Element of NAT : ( ( ) ( V46() V47() V48() V49() V50() V51() V52() V84() ) Element of K6(REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) : ( ( ) ( ) set ) ) ) + (x : ( ( ) ( V11() real ext-real ) Real) ^2) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) ( V11() real ext-real ) Element of REAL : ( ( ) ( non empty V46() V47() V48() V52() V73() V84() V85() V87() ) set ) ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) : ( ( ) (
V11()
real ext-real )
Element of
REAL : ( ( ) ( non
empty V46()
V47()
V48()
V52()
V73()
V84()
V85()
V87() )
set ) ) ) ) ;